BMC research notes
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Comparative Study
In vitro biomechanical testing of the 3.5 mm LCP in torsion: a comparison of unicortical locking to bicortical nonlocking screws placed nearest the fracture gap.
This biomechanical study compared the torsional strength and stiffness of a locking compression plate with all locking versus nonlocking screws and examined the effect of placing a locking unicortical or nonlocking bicortical screw nearest the fracture gap in a synthetic bone model. ⋯ Synthetic bone models simulating a diaphyseal fracture without anatomic reduction were tested using four screw configurations: all bicortical locking (ABL), all bicortical nonlocking (ABN), a hybrid construct with a bicortical nonlocking screw nearest the fracture gap (BN), and a unicortical locking screw placed nearest the fracture gap (UL). Torsional stiffness, rotation and torque at failure were compared via ANOVA and post hoc pairwise comparisons (p < 0.05). ABN and BN had the highest stiffness (p < 0.01) with ABL greater than UL (p < 0.01). Rotation at failure was greatest for ABL (p < 0.01) with UL greater than ABN (p < 0.05). Unicortical locking screws nearest the fracture gap decreased stiffness, without significantly affecting torque or rotation at failure. Construct stiffness was found to exist in a very narrow range of 0.9-1.2 N m/deg with standard deviations of 0.1 N m/deg in all cases. The results of this study support the use of nonlocking screws in a hybrid construct to increase torsional stiffness.
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Cerebral palsy is a major cause of disability and most survivors are left with residual disability and are dependent on parents/caregivers for essential care. This study aimed to determine the experiences of parents/caregivers of cerebral palsy children receiving out-patient physiotherapy. A concurrent mixed methods was used to collect data in the present study. The modified caregiver strain index (MCSI-13) was used to detect Disturbed sleep, Inconvenient/Tiresome, Physical strain, Confining, Family changes, Changes in personal plan, Other demands, Emotional adjustments, Upsetting behavior, Patient has changed, Work adjustments, Financial Strain and Feeling Overwhelmed (strain morbidity) in 25 parents/caregivers of CP children. A purposive sample of 25 parents/caregivers was selected for both the quantitative part and qualitative part of the study. The study was conducted at Community Based Intervention Association Out-patients at the University Teaching Hospital in Lusaka, Zambia. The MCSI was used to collect quantitative data and in-depth interviews provided the qualitative data. ⋯ This study point out to some evidence that the burden inflicted on those caring for children with cerebral palsy should be addressed if the quality of care for those with cerebral palsy is to be improved.
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Case Reports
Occurrence of spontaneous bilateral tubal pregnancy in a low-income setting in rural Cameroon: a case report.
Ectopic pregnancy is a life-threatening emergency warranting immediate recognition and prompt intervention. Bilateral tubal pregnancy is the rarest form of ectopic pregnancy with very limited data on its occurrence reported in sub-Saharan Africa. ⋯ Ectopic pregnancy is one of the major causes of maternal mortality in sub-Saharan Africa. Thus, clinicians should maintain a high index of suspicion, even in the absence of hallmark features and thorough clinical examination undertaken especially in resource-limited settings. Examination of both tubes at laparotomy for ectopic pregnancy should be routine and mandatory.
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Review Case Reports
Acute cerebellitis in adults: a case report and review of the literature.
Acute cerebellitis is a rare disease with the majority of cases described in children. Little is known about the clinical characteristics and outcome in adults. ⋯ Acute cerebellitis in adults is a rare disorder which mainly presents with headache, nausea/vomiting and ataxia. To diagnose cerebellitis, imaging of the brain (preferably MRI) is required and CSF examination may be necessary to narrow the differential diagnosis. The treatment depends on the widely diverse etiology, and treatment with steroids is recommended in the case of cerebellar oedema and hydrocephalus. Neurosurgical intervention may be necessary to prevent brain herniation.
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Prosthetic valve endocarditis (PVE) due to methicillin resistant Staphylococcus aureus (MRSA) is a rare disease with significant mortality and morbidity. With the emerging resistance and adverse effect profile of vancomycin which is the standard treatment, there is a compelling necessity of an effective alternative for vancomycin. Linezolid is proved as such an agent for infections caused by MRSA in other sites. However to-date the evidence for successful use of linezolid for MRSA prosthetic valve endocarditis is limited only for few case studies. We here present the third case reported as effective treatment of PVE by MRSA with linezolid and probably the first case reported with successful treatment with linezolid in a patient with multiple complications who is a candidate for surgery in standard guidelines. ⋯ Linezolid can be considered as a good option for treating PVE by MRSA infections who are not responding to vancomycin and may negate the need for a surgery in patients awaiting an early surgery. Further studies including randomized controlled trials are needed to assess the efficacy of linezolid in PVE due to MRSA.